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How does salary sacrifice affect child support deductions in Microkeeper?

Author Dylan Wong@Microkeeper
Category Payroll
Last Modified 13/08/2025

If an employee has a formal salary sacrifice arrangement via an Expense payment item (e.g., novated lease, health insurance, mortgage payments), the salary sacrifice amount is deducted from gross pay before child support is calculated.

Microkeeper automatically applies the Protected Earnings Amount (PEA) check to ensure the employee's take-home pay doesn't fall below the minimum set by Services Australia.

Example Salary Sacrifice and PEA in Microkeeper

StepDetailsAmount
Gross fortnightly pay
$2,400.00
Less salary sacrificeExpense Item: Mortgage, car lease, health insurance, school fees- $900.00
Tax withheldExample only- $96.00
Remaining pay
$1,404.00
PEA set asideCurrent fortnightly PEA- $1,068.46
Available for child support
$335.54
Child support requested
$398.00
Amount deducted in Microkeeper
$335.54
Net pay to employee
$1,068.46

In this case, Microkeeper will only deduct $335.54, as deducting the full $398 would leave the employee below the PEA. The unpaid $62.46 will be collected directly by Services Australia from the employeeyour payroll does not need to do anything further unless a new notice is received.

Source: Adapted from Services Australia Notice to commence child support deductions